KJV: Now therefore hold him not guiltless: for thou art a wise man, and knowest what thou oughtest to do unto him; but his hoar head bring thou down to the grave with blood.
NASB: "Now therefore, do not let him go unpunished, for you are a wise man; and you will know what you ought to do to him, and you will bring his gray hair down to Sheol with blood."
KJV: Now also when I am old and grayheaded, O God, forsake me not; until I have shewed thy strength unto this generation, and thy power to every one that is to come.
NASB: And even when I am old and gray, O God, do not forsake me, Until I declare Your strength to this generation, Your power to all who are to come.
KJV: And even to your old age I am he; and even to hoar hairs will I carry you: I have made, and I will bear; even I will carry, and will deliver you.
NASB: Even to your old age I will be the same, And even to your graying years I will bear you! I have done it, and I will carry you; And I will bear you and I will deliver you.